ABSTRACT
This chapter discusses the vernacular passive cooling systems (VPCSs) in the houses of hot and dry climates in Iran, their effectiveness in providing a comfortable temperature, and the perceptions of the residents of these houses. It also discusses the performance of VPCSs, based on both perceptions and actual measurements. The chapter shows that in the Iranian vernacular house there are various VPCSs, including central courtyards, distinct seasonal rooms, loggias, basements, massive structures and wind-catchers. In addition, the case of vernacular passive cooling systems in Iran serves to restrain critics from making sweeping generalisations regarding the sustainability of vernacular architecture. Therefore, the provision of thermal comfort, which was one of the most essential and vital factors for the survival of VPCSs in the past, has become a factor in their demise at present. The temperature readings in the traditional houses of Yazd were made in typical hot seasons during which optimal climatic conditions for the use of the VPCSs occurred.
